Update plugin org.springframework.boot to v3.4.6

This MR contains the following updates:

Package	Type	Update	Change
org.springframework.boot	plugin	patch	3.4.5 -> 3.4.6

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build.gradle

@@ -2,7 +2,7 @@ plugins {
     id 'java'
     id 'idea'
     id 'jacoco'
-    id 'org.springframework.boot' version '3.4.5'
+    id 'org.springframework.boot' version '3.4.6'
     id 'io.spring.dependency-management' version '1.1.7'
     id 'com.gorylenko.gradle-git-properties' version '2.5.0'
     id 'org.sonarqube' version '6.2.0.5505'